This is a
modern translation of Nenniusís account
of Arthurís twelve successful battles against the Saxons;

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"Then it was, that the magnanimous Arthur, with all the kings and
military force of Britain, fought against the Saxons. And though there were
many

more noble than himself, yet he was twelve times
chosen their commander, and was as often conqueror.

The first
battle was in the mouth of the river

which is called Glein.

The second and
third and fourth and fifth on another river which is called Dubglas
and is in the region Linnuis.

The sixth
battle on the river which is called Bassas.

The seventh
battle was in the forest of Celidon, that is Cat CoitCelidon.

The eighth
battle was near the fortGuinnion, where Arthur bore the image of the Holy Virgin,

mother of God, upon his shoulders, and through the power
of our Lord Jesus Christ, and the holy Mary, put the Saxons to flight, and
pursued them

whole day with great slaughter.

The ninth
battle was fought in the city of the Legion.

He fought the
tenth battle on the shore of the river called Tribruit.

The eleventh
battle was fought on the hill called Agned.

The twelfth
was a most severe contest, when Arthur penetrated to the hill of Badon. In this engagement, nine hundred and forty fell by his
hand alone, no one but the Lord affording him assistance. In all these
engagements the Britons were successful."

Here are the
possible sites;†††††††

The River Glein is thought to be the River Glen, of which Britain has two today--one in Lincolnshire and one in Northumberland.

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The DubglasRiver
and Linnuis are more problematic. Dubglas
can be translated as "black water," a common name in those days and
today. A

branch of the MedwayRiver,
the Kent, was called "Le Black" for hundreds of
years and may have been called that in Arthur's time.

Linnuis conceivably provides better clues, as it is an
extension of the Roman Lindum, which is now Lincoln. If Lindum can be Lincoln, then Linnius can be
Lindsey. Geoffrey of Monmouth identifies Arthur as fighting two battles very
soon after assuming the kingship: one on the River Douglas and one at Lincoln.

The River Bassas is very problematic for

historians, although it is thought by some to be near Baschurch in Shropshire.

The CelidonForest
is generally believed to be the

Caledonian
Forest, in what is now Scotland. Geoffrey of Monmouth places this battle in a
wood north of Lincoln.

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The fort Guinnion is thought to be either Caer-Gwent
in Gwent, South Wales or Winchester in Hampshire, the former being an obvious
derivation and the latter being based on the Romano-British equivalent of
Win-Chester: Caer Guinn.

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The City of
the Legions is identified by Geoffrey of Monmouth as Caerleon.
However, modern research tends to focus on Chester, which was

identifed in the AnnalesCambriae as UrbsLegionis.

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Tribruit can be thought of as Tryfrwyd,
a battle mentioned in a tale from the Black Book of Carmarthen that mentions Arthur as well. This

battle was pegged as being near the Firth of Forth.

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Agned is identified by Geoffrey of Monmouth as Edinburgh. Modern historians agree.